Even if it’s dim…serious health damages to sleeping in the light

by time news
Even if it’s dim…serious health damages to sleeping in the light

A new study concludes that branched variants of the Omicron mutant can evade immunity acquired through vaccines and previous infection, CNN reported.

The results of the study, conducted by researchers at Beth Israel Deaconess Medical Center in Boston, indicated that the “BA.4” and “BA.5” branches of the highly contagious Omicron mutant can infect people with Covid-19 even if they received 3 doses of the vaccine or previously had They got sick.

However, the COVID-19 vaccine still provides significant protection against severe illness and death.

According to the study, which was published, Wednesday, in the “New England Journal of Medicine”, the levels of neutralizing antibodies caused by previous infections or vaccines are several times lower than the “BA.4” and “BA.5” sub variants compared to the original coronavirus.

“The data suggest that these new omicron subvariants likely lead to an increase in infection in populations with high levels of resulting immunity,” study author Dan Baruch, study author and director of virus and vaccine research at Beth Israel Deaconess Medical Center told CNN. About the vaccine, in addition to the natural immunity” due to the previous infection.

“However, it is likely that vaccine immunity will still provide significant protection against severe disease,” he added.

The “BA.4” and “BA.5” variants caused an estimated 35 percent of new COVID-19 infections in the United States last week, up from 29 percent from the previous week, according to data published by the US Centers for Disease Control and Prevention, Tuesday. .

The results of the latest study reflect separate research by scientists at Columbia University in the United States.

And scientists recently discovered that the “BA.4” and “BA.5” subclones were more able to escape the antibodies in the blood of fully vaccinated adults who received booster doses compared to other subvariants of Omicron, which increases the risk of Covid infection for people. appendices.

The authors of that separate study say their findings suggest a higher risk of reinfection even in people with some previous immunity to the virus.

The US Centers for Disease Control and Prevention estimates that 94.7 percent of the US population aged 16 or older has antibodies to the coronavirus that causes COVID-19 through vaccination, infection, or both.

“Our data indicate that (virus) COVID-19 still has the potential to mutate further resulting in increased susceptibility to infection and an increase in antibody escaping,” said Dr. Baruch.

He continued, “With the lifting of the epidemic restrictions, it is important that we remain vigilant and continue to study new variables and sub-variables as they arise.”

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